adapter: Use idle callbacks for forcing DevicesFound events
adapter: Use idle callbacks for forcing DevicesFound events

This way we ensure that we include all found devices from the current
mainloop iteration into the DevicesFound signal.

pkarasev3/bluez,silent-snowman/bluez,mapfau/bluez,ComputeCycles/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,silent-snowman/bluez,mapfau/bluez,ComputeCycles/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,mapfau/bluez,ComputeCycles/bluez,silent-snowman/bluez,mapfau/bluez